Article
Point mutation in cytochrome b of yeast ubihydroquinone:cytochrome-c oxidoreductase causing myxothiazol resistance and facilitated dissociation of the iron-sulfur subunit.
European journal of biochemistry - 1 Sept 1992
Geier B M, Schägger H, Brandt U, Colson A M, Von Jagow G
Abstract excerpt
Cytochrome-c reductase was isolated from Saccharomyces cerevisiae GM50-3C. A tenth subunit was detected with molecular mass 8.5 kDa on SDS/PAGE. Two yeast mutants selected for resistance to myxothiazol, an inhibitor of the Q0 center (Q, ubiquinone) of cytochrome-c reductase, were analysed. The single amino acid substitution in the cytochrome-b subunit, N256Y in the mutant Myx-119 and G137R in the mutant Myx-118,...
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